Pen holder



FIG. 1 is a perspective view showing the front, left side and top of thepen holder showing my new design.

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a right side view thereof.

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The ornamental design for a pen holder, as shown and described. 